Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tape & Reel (TR) |
| Part Status | Active |
| Type | General Purpose |
| Number of Elements | 2 |
| Output Type | CMOS, MOS, Open-Collector, TTL |
| Voltage - Supply, Single/Dual (±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage - Input Offset (Max) | 7mV @ 5V |
| Current - Input Bias(Max) | 0.25µA @ 5V |
| Current - Output (Typ) | 16mA @ 5V |
| Current - Quiescent (Max) | 1mA |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
Tổng quan
Description
The LM393ST is a dual voltage comparator integrated circuit commonly used in electronic applications. It features two independent precision voltage comparators designed to operate from a single supply or dual supplies. The device offers a wide range of supply voltages, from 2V to 36V, making it versatile for various applications. It has an open collector output, which allows multiple comparators to be connected to a single line.
One of the key characteristics of the LM393ST is its low input offset voltage, which enhances precision and accuracy in comparison tasks. The device is also known for its low power consumption, making it suitable for battery-operated devices. It can be used in level-shifting circuits, zero-crossing detectors, and other designs where simple and reliable voltage comparison is needed.
The LM393ST is valued for its reliability, affordability, and efficiency in various electronic projects, from consumer electronics to industrial applications. Its compact size and robust performance make it a popular choice among engineers and hobbyists alike.
One of the key characteristics of the LM393ST is its low input offset voltage, which enhances precision and accuracy in comparison tasks. The device is also known for its low power consumption, making it suitable for battery-operated devices. It can be used in level-shifting circuits, zero-crossing detectors, and other designs where simple and reliable voltage comparison is needed.
The LM393ST is valued for its reliability, affordability, and efficiency in various electronic projects, from consumer electronics to industrial applications. Its compact size and robust performance make it a popular choice among engineers and hobbyists alike.
Equivalent
The LM393ST is a dual voltage comparator. Equivalent products include:
1. LM393N
2. LM393P
3. LM393D
4. LM393M
5. LM2903 (broader temperature range)
6. LM193 (military grade)
7. TLV1702 (from Texas Instruments, with wider supply voltage)
8. MC3302 (similar functionality, different manufacturer)
Ensure to verify pin configuration and electrical characteristics as equivalents may vary slightly.
1. LM393N
2. LM393P
3. LM393D
4. LM393M
5. LM2903 (broader temperature range)
6. LM193 (military grade)
7. TLV1702 (from Texas Instruments, with wider supply voltage)
8. MC3302 (similar functionality, different manufacturer)
Ensure to verify pin configuration and electrical characteristics as equivalents may vary slightly.
Features
The LM393ST is a dual voltage comparator that offers several key features:
1. Dual Comparators: It includes two independent voltage comparators in a single package.
2. Wide Supply Voltage Range: Operates from a single power supply of 2V to 36V or dual supplies ranging from ±1V to ±18V.
3. Low Supply Current: The device has a low power consumption, typically around 0.4 mA per comparator.
4. Low Input Bias Current: It features low input bias current, typically around 25 nA.
5. Low Input Offset Voltage: The typical input offset voltage is around 2 mV, ensuring precise voltage comparison.
6. Open Collector Output: The outputs are open collector, which allows for wired logic connections with other open-collector devices.
7. Wide Temperature Range: It operates efficiently within a temperature range from -40°C to +125°C.
8. Versatile Applications: Suitable for applications like zero crossing detectors, voltage level detectors, and pulse generators.
These features make the LM393ST a versatile component for a variety of electronic applications, particularly in analog signal processing and battery-powered devices.
1. Dual Comparators: It includes two independent voltage comparators in a single package.
2. Wide Supply Voltage Range: Operates from a single power supply of 2V to 36V or dual supplies ranging from ±1V to ±18V.
3. Low Supply Current: The device has a low power consumption, typically around 0.4 mA per comparator.
4. Low Input Bias Current: It features low input bias current, typically around 25 nA.
5. Low Input Offset Voltage: The typical input offset voltage is around 2 mV, ensuring precise voltage comparison.
6. Open Collector Output: The outputs are open collector, which allows for wired logic connections with other open-collector devices.
7. Wide Temperature Range: It operates efficiently within a temperature range from -40°C to +125°C.
8. Versatile Applications: Suitable for applications like zero crossing detectors, voltage level detectors, and pulse generators.
These features make the LM393ST a versatile component for a variety of electronic applications, particularly in analog signal processing and battery-powered devices.
Pinout
The LM393ST is a dual voltage comparator with a total of 8 pins. Here is a brief overview of its pin configuration and functions:
1. VCC (Pin 8): This is the power supply pin for the IC. It provides the necessary voltage for the comparator to operate.
2. GND (Pin 4): This is the ground pin and is connected to the 0V reference of the power supply.
3. Non-Inverting Inputs (Pins 3 and 5): These are the input pins for the non-inverting terminals of the two comparators within the IC. The voltage applied here is compared with the voltage at the inverting input.
4. Inverting Inputs (Pins 2 and 6): These are the input pins for the inverting terminals. The comparator compares this voltage with the voltage at the non-inverting input.
5. Output (Pins 1 and 7): These are the output pins for the two comparators. The output is typically an open-collector output, which means it can be pulled high externally.
The LM393ST is commonly used in applications where voltage comparison is needed, such as in zero-crossing detectors and voltage level monitoring.
1. VCC (Pin 8): This is the power supply pin for the IC. It provides the necessary voltage for the comparator to operate.
2. GND (Pin 4): This is the ground pin and is connected to the 0V reference of the power supply.
3. Non-Inverting Inputs (Pins 3 and 5): These are the input pins for the non-inverting terminals of the two comparators within the IC. The voltage applied here is compared with the voltage at the inverting input.
4. Inverting Inputs (Pins 2 and 6): These are the input pins for the inverting terminals. The comparator compares this voltage with the voltage at the non-inverting input.
5. Output (Pins 1 and 7): These are the output pins for the two comparators. The output is typically an open-collector output, which means it can be pulled high externally.
The LM393ST is commonly used in applications where voltage comparison is needed, such as in zero-crossing detectors and voltage level monitoring.
Manufacturer
The LM393ST is manufactured by STMicroelectronics, a global semiconductor company. STMicroelectronics is known for designing and manufacturing a wide range of semiconductor products, including microcontrollers, sensors, and integrated circuits like the LM393ST. It's a multinational company with headquarters in Geneva, Switzerland, and operates in various sectors such as automotive, industrial, personal electronics, and communications equipment. The company focuses on creating innovative solutions and technologies that cater to a variety of applications, addressing the needs of different industries through sustainable practices and advanced technology development.
Application
The LM393ST is a dual differential comparator used in various applications. It is commonly utilized in voltage level detection, zero-crossing detection, and oscillator circuits. In power management systems, it helps monitor battery charging and discharging processes. The LM393ST is also employed in sensor interfacing, particularly for processing analog signals from temperature, light, or other environmental sensors. Additionally, it is used in automotive systems for functions such as throttle position sensing and engine control units. Its versatility and low power consumption make it suitable for both consumer electronics and industrial applications.
Package
The LM393ST is a dual voltage comparator typically available in a surface-mount package type, specifically the SOIC-8 (Small Outline Integrated Circuit with 8 pins). This package is commonly used for compact designs and provides ease of installation on printed circuit boards (PCBs).
